MongoDB与python的交互

安装python包

sudo pip install pymongo

引入pymongo

import pymongo

连接，创建客户端

client = pymongo.MongoClient(“localhost”,27017)

获取数据库test

db = client.test1

获得集合stu

stu = db.stu

添加文档

s1 = {name:’gj’,age:18}

s1_id = stu.insert_one(s1).inserted_id

查找一个文档1

s2=stu.find_one()

查找多个文档1

for cur in stu.find():

print(cur)

获取文档个数

print(stu.count)